Don't set the -target-cpu and -target-features attributes just now.

This is causing some problems with some of the builders. It's non-trivial to
reset the target's features.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@176133 91177308-0d34-0410-b5e6-96231b3b80d8
Fix testcases to not rely upon target-* attributes.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@176135 91177308-0d34-0410-b5e6-96231b3b80d8
Temporarily revert r176133 until testcases are modified.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@176137 91177308-0d34-0410-b5e6-96231b3b80d8
Use existing macros to simplify the test a bit.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@176138 91177308-0d34-0410-b5e6-96231b3b80d8